Touch ID is a way to secure your iPhone or iPad and make purchases in App Store or iTunes Store. It is available on iPhone 5s and later as well as iPad mini 3/4, iPad Air 2 and iPad Pro. In few days ago, Apple has released iOS 10.1 as a major update to iOS 10.

One of the biggest changes in iOS 10 is the removal of Swipe to Unlock. Instead, you need to press home button to unlock your iPhone. However, some iPhone users reported that they failed to activate Touch ID after iOS 10 or iOS 10.1 update, and in this guide, we will show you how to fix Touch ID issues on iOS 10/iOS 10.1.

Note:

If you don’t like this "Press home button to unlock" feature, you can also open your iPhone with "Rest Finger to Open" and "Raise to Wake", which allows you to unlock iPhone with Touch ID (Fingerprint) without pressing home button. Raise to Wake only works for iPhone SE, iPhone 6s/6s Plus, and iPhone 7/iPhone 7 Plus.

To enable Rest Finger to Open: Settings > General > Accessibility > Home Button > Toggle Rest Finger to Open to ON.

Based on the former iOS 8 and iOS 9 update experience, there are various types of issues or bugs you may meet when downloading iOS 10, for instance, Wi-Fi not working, apps keep crashing, or iMessage problems etc. It is highly recommended to back up your iDevice before update.

2. Remove and re-add fingerprints: Settings > Touch ID & Passcode > Enter the passcode of your device > Scroll down to find fingerprints. Tap on the fingerprint, which you want to delete and then Tap on Delete.

3. During the registration process, make sure your finger surface gets scanned and try different angle.

4. If your finger is sweat or there is liquid on your iPhone, you need to wipe both your finger and your home button.

5. Force Restart your iPhone or iPad: Hold down the Home and Wake/Sleep buttons at the same time for about 15-20 seconds until the Apple logo appears.

6. If a restart does not help try a Restore. First backup your device using iTunes. Then connect your iDevice to computer and launch iTunes to restore your iPhone.

If you meet any other new issues with Touch ID after iOS 10/iOS 10.1 update, you can share with us in comment section. And any suggestions or fixes are welcomed. In case that you may lose some important iOS content when updating to iOS 10/iOS 10.1, we provide you Three Ways to Retrieve Lost Data on iPhone/iPad .